/*
 * Copyright 2017 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package app.tivi

import android.view.View
import androidx.collection.ArrayMap

class SharedElementHelper {
    private val _sharedElements = ArrayMap<View, String?>()

    val sharedElements: Map<View, String?>
        get() = _sharedElements

    fun addSharedElement(view: View, transitionName: String? = view.transitionName) {
        _sharedElements[view] = transitionName ?: view.transitionName
    }

    fun isEmpty(): Boolean = _sharedElements.isEmpty
}
